Of the Phenomena in 



the Milt of this Fifli, as well as the 

 Semen of other Animals, which yet 

 never appeared even upon the im- 

 mediate Examination of Milt-Veffels, 

 ;which had been taken out of the 

 Body of the Fifh while alive. 



If we add to this, that thefe Milt- 

 Veffels, when left in the Body of 

 the Fifh, and not expofed to the 

 Air, will retain their Activity for 

 fome Days after it is dead, which 

 they inftantly exert upon the Appli- 

 cation of Water with the fame 

 Force, and that fomething is requi- 

 iite in the Nature of a Menftruum, 

 or otherwife for the Removal of 

 Obftacles, which impede their Adtion 

 at all Times, the Comparifon will 

 appear yet more juft to thofe, who 

 may hereafter oblerve in the Mi- 

 crofcope their various Twiftings, 

 Turnings, Dilatations, Extenfions, 

 Motions, in fine, in every Direction, 

 during the Time of Operation. But, 

 as I have already premifed, I own 

 myfelf no competent Judge in this 

 Particular, and confequently propofe 

 it only by way of Queftion to be 



refolved 



